- #1
TheBigDig
- 65
- 2
- Homework Statement
- Deduce an expression for the force on a magnet in a field gradient dB/dz assuming m || B
- Relevant Equations
- [tex]E = -\vec{m}\cdot \vec{B}[/tex]
[tex] \vec{F} = \nabla (\vec{m}\cdot \vec{B}) [/tex]
So I'm kinda stumped. I'm assuming that since ##\vec{m}||\vec{B}##, the x and y components of both are zero. But I'm unsure how to take this further.